Greetings all,
This is more of a tuning question. We have a pl/sql
procedure doing inserts and updates to a very large
table. This procedure process different groups of
same types of data sequentially. The difference
between these groups is with the volume of raw data.
When the procedure gets to process a large dataset
(large volume), the performance slows significantly.
However, it will speed up when it gets to process a
smaller dataset.
The clincher: If I was to terminate and re-start the
procedure the performance picks up for the same large
dataset. It behave as though the buffer is "full" and
the re-start seems to clear the buffer or any "cow
webs" from previous session.
The procedure has been tuned. The target table has
recently been defragmented. No other processes
running concurrently.
We suspect the database needs tuning but do not know
how to proceed. What should we be looking for? I am
hoping to get suggestions on what to do to tune the
DB. Appreciate any feedback.
Thanks very much,
Ed
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Author: Ed
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